1) why do astronomers use different measurement systems to discuss distance in the universe? a) because light behaves different as the universe expands b) because scientists are trained all over the world and there is no universal measurement system c) because it allows the numbers to be more manageable 2) which measurement system has the largest value? a) astronomical unit b) light year c) parsec
Answers: 1
Chemistry, 21.06.2019 21:00, alexmarche4675
Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.
Answers: 2
Chemistry, 22.06.2019 06:00, tddreviews
Match the name of the following compound: mgso4 ยท h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
Answers: 1
Chemistry, 22.06.2019 12:00, zamariahyou
A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4โข_h2o what is the mass % of water in the hydrate?
Answers: 1
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